EP 0074558 B1 19851211 - PROCESS FOR THE PRODUCTION OF WATER-SOLUBE, NITROGEN-CONTAINING CONDENSATION PRODUCTS, AND THEIR USE IN THE MANUFACTURE OF PAPER
Title (en)
PROCESS FOR THE PRODUCTION OF WATER-SOLUBE, NITROGEN-CONTAINING CONDENSATION PRODUCTS, AND THEIR USE IN THE MANUFACTURE OF PAPER
Publication
Application
Priority
DE 3135830 A 19810910
Abstract (en)
[origin: ES8306490A1] Water-soluble, nitrogen-containing condensates are prepared by reacting a cross-linking agent, obtained by (a) condensing 1 mole of a dicarboxylic acid of 4 to 10 carbon atoms with from 1 to 2 moles of a polyalkylenepolyamine, having 3-10 basic nitrogen atoms in the molecule, to give a polyamidoamine and (b) reacting the polyamidoamine with epichlorohydrin and/or dichlorohydrin in aqueous solution at a pH of from 4.5 to 8.5 and at below 100 DEG C., from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being employed per 100 parts by weight of the polyamidoamine from (a), with ammonia, a primary amine, a polyamine containing 2 to 4 N atoms, a polyether-amine or a polyamidoamine in aqueous solution at below 100 DEG C. The condensates are used as retention aids, flocculants and drainage aids in papermaking.
IPC 1-7
IPC 8 full level
C08G 69/00 (2006.01); C08G 69/48 (2006.01); C08G 73/02 (2006.01); D21H 17/55 (2006.01); D21H 21/10 (2006.01)
CPC (source: EP US)
C08G 69/48 (2013.01 - EP US); C08G 73/022 (2013.01 - EP US); C08G 73/024 (2013.01 - EP US); C08G 73/0286 (2013.01 - EP US); D21H 17/55 (2013.01 - EP US); D21H 21/10 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0074558 A2 19830323; EP 0074558 A3 19830601; EP 0074558 B1 19851211; AU 550211 B2 19860306; AU 8815082 A 19830317; CA 1196454 A 19851112; DE 3135830 A1 19830324; DE 3267921 D1 19860123; ES 515598 A0 19830601; ES 8306490 A1 19830601; JP S5857436 A 19830405; US 4450045 A 19840522; ZA 826608 B 19831026
DOCDB simple family (application)
EP 82108020 A 19820901; AU 8815082 A 19820909; CA 410853 A 19820907; DE 3135830 A 19810910; DE 3267921 T 19820901; ES 515598 A 19820909; JP 15688982 A 19820910; US 41661482 A 19820910; ZA 826608 A 19820909